﻿/* 
* Copyright (c) 2009, The University of Texas at Austin
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification, 
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, 
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, 
* this list of conditions and the following disclaimer in the documentation and/or other materials 
* provided with the distribution.
*
* Neither the name of The University of Texas at Austin nor the names of its contributors may be 
* used to endorse or promote products derived from this software without specific prior written 
* permission.
* 
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR 
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND 
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

using System;
using System.Windows.Input;
using JulMar.Windows.Mvvm;

namespace Bio.Views.Alignment.ViewModels
{
    /// <summary>
    /// This class is used to perform FindName searches
    /// </summary>
    public class FindSearchViewModel : ViewModel
    {
        /// <summary>
        /// Search string to look for
        /// </summary>
        public string SearchString { get; set; }

        /// <summary>
        /// Whether to match the entire name
        /// </summary>
        public bool MatchWholeName { get; set; }

        /// <summary>
        /// Whether to search backwards
        /// </summary>
        public bool SearchBackward { get; set; }

        /// <summary>
        /// The command to execute the find
        /// </summary>
        public ICommand FindNext { get; private set; }

        /// <summary>
        /// Constructor
        /// </summary>
        /// <param name="findCommand"></param>
        public FindSearchViewModel(ICommand findCommand)
        {
            FindNext = findCommand;
        }

        /// <summary>
        /// This performs the matching.
        /// </summary>
        /// <param name="header">Header to compare</param>
        /// <returns></returns>
        public bool Match(string header)
        {
            return (MatchWholeName && string.Compare(header, SearchString, true) == 0) ||
                   (!MatchWholeName && header.IndexOf(SearchString, StringComparison.CurrentCulture) >= 0);
        }
    }
}
